code: def test_load_template():
      mpl.use("template")
      assert type(plt.figure().canvas) == FigureCanvasTemplate
  
file_path: matplotlib/lib/matplotlib/tests/test_backend_template.py
imports: import sys
  from types import SimpleNamespace
  from unittest.mock import MagicMock
  import matplotlib
  from matplotlib import pyplot
  from matplotlib.backends import backend_template
  from matplotlib.backends.backend_template import FigureCanvasTemplate, FigureManagerTemplate
label_desc: Use image node_id 1 for calling a global function with example usage: test_load_template() without return types